Planet Mars is one of the celestial objects visible to the naked eye at night and sunny day. Every two years, Mars and Earth approach each other. It is called by the Opposition, the time when Mars was closer to 55 million km from Earth.
The time required for a vehicle to travel from Earth to Mars range between 150-300 days depending on the speed of the launch, the alignment of Earth and Mars, and the length of the travel distance to reach the target
Aircraft or spacecraft made the first man who went to Mars is the fourth Marine was launched on 28 November 1964 and arrived at Mars on July 14, 1965. Marine 4 managed to take 21 pictures. Total flight time was 228 days
The success was followed by the Marine 6, which was launched on February 25, 1969 and arrived at Mas dated July 31, 1969. Flight time is only 156 days. Marine 7 also made it to Mars with a travel time of only 131 days.
Marine 9 as the first successful satellite into orbit Mars launched on May 30, 1971 and up on 13 November 1971 with a travel time of 167 days.
From there the approximate duration of travel time to Mars between 150-300 days. But there also can be longer than 300 days. Here's an example:
1. Viking 1 (1976) = 335 days
2. Viking 2 (1976) = 360 days
3. Mars Reconnaissance Orbiter (2006) = 210 days
4. Phoenix Lander (2008) = 295 days
5. Curiosity Lander (2012) = 253 days